陵阳镇39步进电机VTV-12SC同心同行

　蜗轮蜗杆减速机在25%额定负荷下，蜗轮齿面接触斑点，按齿高不小于55%（偏向齿顶）按齿长不小于60%，且双向运转时，蜗轮轮齿两接触面对称于蜗轮中心平面。
　　蜗轮减速机在装配合格后应全部进行跑合试验。实验前应注入规定的润滑油，且油池温度不得低于0°C，在额定转速及轻微制动（25%额定负荷）下正、反两项运转时间个不小于2小时，运转中不得有冲击、漏油、不正常的震动、噪声及连接、紧固件松动等现象。

　　蜗轮减速机跑合实验合格后，应按下列方法进行负荷试验：成批生产同一规格尺寸的蜗轮减速机，允许抽试10%（不足10台者应抽试一台），抽试不合格时，应在抽试20%，仍不合格，应全部进行实验。

陵阳镇39步进电机VTV-12SC同心同行
土壤电阻会随着季节的变化而不同，春夏天雨水多，土壤湿接地电阻较容易达到，秋冬季干燥土壤水分少，接地电阻就有可能超过规定数值，作记录是为了保存原始数据，做到日后有据可查。符合ISO2质量管理体系。测试接地电阻可以自行设计表格，接地电阻测试封装企业、LED应用企业都要做，只要将各种设备名称填于表格内，测出各设备的接地电阻记录在案，测试人签名即可存档。静电对LED的损害也是很大的，工作时应穿防静电服装，配带静电环，静电环应接地良好，有一种不须要接地的静电环防静电的效果不好，建议不使用配带该种产品，如果工作人员违反操作规程，则应接受相应的警示教育，同时也起到告示他人的作用。



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陵阳镇39步进电机VTV-12SC同心同行

陵阳镇39步进电机VTV-12SC同心同行
这种缺陷主要是由于干燥迟缓或缺乏保管措施所引起。对材质的影响：变色菌的变色，一般不影响木材的物理力学性质。但严重青变时，对木材抗冲击强度稍有降低。并增强其吸水性，损害木材外观。通常这种变色不会形成腐朽。腐朽菌变色：系朽菌侵入木材初期所形成。最常见的是红斑。有的呈浅红褐色、棕褐色或紫红色;有的也呈淡黄白色或粉红褐色等。所有破坏木材的真菌，在其开始活动时，都将引起木材的变色。心材红斑或其他色斑，多由于树木在生长期中木腐菌侵入初期所引志。

陵阳镇39步进电机VTV-12SC同心同行

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